feat: zeroize

src/cmd_encrypt.rs

@@ -8,6 +8,7 @@ use clap::Args;
 use flate2::Compression;
 use rsa::Pkcs1v15Encrypt;
 use rust_util::{debugging, failure, information, opt_result, simple_error, success, util_msg, warning, XResult};
+use zeroize::Zeroize;
 
 use crate::{util, util_ecdh};
 use crate::compress::GzStreamEncoder;
@@ -220,7 +221,8 @@ fn encrypt_file(file_in: &mut File, file_out: &mut File, key: &[u8], nonce: &[u8
             opt_result!(file_out.write_all(&encrypted), "Write file failed: {}");
         }
     }
-    util::zeroize(key);
+    let mut key = key;
+    key.zeroize();
     Ok(total_len)
 }